FR2463546A1 - Clavier magnetique - Google Patents

Clavier magnetique Download PDF

Info

Publication number
FR2463546A1
FR2463546A1 FR8017261A FR8017261A FR2463546A1 FR 2463546 A1 FR2463546 A1 FR 2463546A1 FR 8017261 A FR8017261 A FR 8017261A FR 8017261 A FR8017261 A FR 8017261A FR 2463546 A1 FR2463546 A1 FR 2463546A1
Authority
FR
France
Prior art keywords
windings
winding
signal
key
polarity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR8017261A
Other languages
English (en)
French (fr)
Inventor
George Trenkler
Richard G Delagi
Francois A Padovani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of FR2463546A1 publication Critical patent/FR2463546A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type

Landscapes

  • Input From Keyboards Or The Like (AREA)
FR8017261A 1979-08-08 1980-08-05 Clavier magnetique Withdrawn FR2463546A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/064,954 US4283714A (en) 1979-08-08 1979-08-08 Magnetic keyboard system

Publications (1)

Publication Number Publication Date
FR2463546A1 true FR2463546A1 (fr) 1981-02-20

Family

ID=22059357

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8017261A Withdrawn FR2463546A1 (fr) 1979-08-08 1980-08-05 Clavier magnetique

Country Status (6)

Country Link
US (1) US4283714A (de)
JP (1) JPS5629735A (de)
DE (1) DE3030156A1 (de)
FR (1) FR2463546A1 (de)
GB (1) GB2055701A (de)
IT (1) IT1145412B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398180A (en) * 1980-06-26 1983-08-09 International Standard Electric Corporation Contactless keyboard
US4521685A (en) * 1982-03-01 1985-06-04 Lord Corporation Tactile sensor for an industrial robot or the like
JPS58161026A (ja) * 1982-03-19 1983-09-24 Hitachi Ltd 入力装置
DE3317112C1 (de) * 1983-05-10 1984-10-18 Meister Klaus Sicherheitstastatur fuer elektronische Verschlusseinrichtungen
US4669903A (en) * 1985-04-23 1987-06-02 Stuart Herzog Bio-mechanical keyboard structure and method
CA2192230A1 (en) * 1996-12-05 1998-06-05 Rich Chen Electromagnetic sensitive switch
US6914427B2 (en) * 2003-03-14 2005-07-05 The Boeing Company Eddy current probe having sensing elements defined by first and second elongated coils and an associated inspection method
EP2721627A4 (de) * 2011-05-27 2015-04-15 Diehl Ako Stiftung Gmbh & Co Induktives berührungstasten-schaltsystem mit einem ablenkungsübersetzungsmechanismus
WO2014107155A1 (en) * 2013-01-04 2014-07-10 Hewlett-Packard Development Company, L.P. Keyboard assembly including an electromagnet

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060393A (en) * 1954-07-22 1962-10-23 Trak Electronics Company Inc Controllable inductor
NL209920A (de) * 1955-08-26
US3027548A (en) * 1956-12-17 1962-03-27 Bell Telephone Labor Inc Electromagnetic coupling arrangements
US3363737A (en) * 1966-04-11 1968-01-16 Kokusai Denshin Denwa Co Ltd Pulse generating key board
DE1549489B2 (de) * 1967-03-18 1972-08-31 Kienzle Apparate Gmbh, 7730 Villingen Vorrichtung zur eingabe alphanumerischer informationen in datenverarbeitungsmaschinen
US3522442A (en) * 1968-06-04 1970-08-04 Ferranti Packard Ltd Switch
US3598903A (en) * 1968-06-06 1971-08-10 Ibm Position-identifying device
US3530329A (en) * 1968-06-25 1970-09-22 Gen Electric Filament support and heat shield construction for electric lamps
US3564214A (en) * 1968-11-18 1971-02-16 Ind Instrumentations Inc Control article having conductive inserts for use in a control system
US3495236A (en) * 1969-04-16 1970-02-10 Burroughs Corp Transducer
GB1270892A (en) * 1969-09-01 1972-04-19 Olivetti & Co Spa Keyboard for calculating machines, teleprinters, terminals and the like
US3623080A (en) * 1970-01-02 1971-11-23 Bunker Ramo Self-encoding keyboard employing eddy current shorting
US3683371A (en) * 1970-09-15 1972-08-08 Burroughs Corp Magnetic keyboard terminal
US3668697A (en) * 1970-09-24 1972-06-06 Hewlett Packard Co Noncontacting keyboard
US3626409A (en) * 1970-11-13 1971-12-07 Ibm Keyboard data entry device
FR2115703A5 (de) * 1970-11-30 1972-07-07 Cit Alcatel
US3757068A (en) * 1971-04-15 1973-09-04 Hewlett Packard Co Sms keyboard actuating mechanism with particular feel and contact mechani
US3719902A (en) * 1972-01-12 1973-03-06 H Esterly Key switch
US3911429A (en) * 1974-04-08 1975-10-07 Ibm Self-energized magnetic keys
US3958203A (en) * 1974-10-29 1976-05-18 Illinois Tool Works Inc. Positional transducer utilizing magnetic elements
US3958202A (en) * 1974-11-18 1976-05-18 Illinois Tool Works Inc. Positional transducer utilizing magnetic elements having improved operating characteristics
US4052785A (en) * 1975-11-28 1977-10-11 Dana Corporation Method of making a transformer assembly
US4117438A (en) * 1977-04-13 1978-09-26 Datanetics Corporation Contactless keyswitch for keyboards
US4137512A (en) * 1977-05-13 1979-01-30 Illinois Tool Works Inc. Contactless magnetic switch

Also Published As

Publication number Publication date
DE3030156A1 (de) 1981-02-26
GB2055701A (en) 1981-03-11
IT8049436A0 (it) 1980-08-06
US4283714A (en) 1981-08-11
JPS5629735A (en) 1981-03-25
IT1145412B (it) 1986-11-05

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Legal Events

Date Code Title Description
ST Notification of lapse